Finding the Fourth Proportional to 73,491.84, 101,418.20 and 39,957.84
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Solution
The fourth proportional to 73,491.84, 101,418.20 and 39,957.84 is: 55,141.53
Step by Step Solution
- Step 1: Write the proportion equation
73,491.84 : 101,418.20 = 39,957.84 : x - Step 2: Convert to fraction form
73,491.84/101,418.20 = 39,957.84/x - Step 3: Cross multiply
73,491.84x = 101,418.20 × 39,957.84 - Step 4: Simplify right side
73,491.84x = 4,052,452,208.69 - Step 5: Solve for x
x = 4,052,452,208.69/73,491.84 - Step 6: Final answer
x = 55,141.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.